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22 lines
750 B
Markdown
22 lines
750 B
Markdown
# Build Scripts Which Generate Code
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If `ninja` complains about missing files, check the `build.rs` to see if it
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writes source code files.
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If so, modify [`gnrt_config.toml`][1] to add `build-script-outputs` to the
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crate. If this is a transitive dependency, that is, one on which Chromium
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code should not directly depend, also add `allow-first-party-usage=false`.
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There are several examples already in that file:
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```toml
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[crate.unicode-linebreak]
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allow-first-party-usage = false
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build-script-outputs = [ "tables.rs" ]
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```
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Now rerun [`gnrt.py -- gen`][2] to regenerate `BUILD.gn` files to inform ninja
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that this particular output file is input to subsequent build steps.
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[1]: ../configuring-gnrt-config-toml.md
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[2]: ../generating-gn-build-rules.md |